Static universe and cosmic field

Summary It is found that in the presence of the cosmic field, which singles out a time-like direction, a static closed homogeneous isotropic universe of the Einstein type is possible, provided matter is present. On the other hand, a universe of the de Sitter type is not permitted by the field equations. A Bruno Finzi nel suo 70^mo compleanno Entrata in Redazione il 4 febbraio 1970.